At a glance
- This page includes links to information about the current flu season and past flu seasons, including current and past flu surveillance reports.
- Learn more about flu disease burden and flu forecasting and find links to additional flu resources.
Resources for the Current Flu Season
Review information about the 2024–2025 flu season.
A weekly influenza surveillance report prepared by the Influenza Division. All data are preliminary...
CDC estimates the burden of flu in the US each season to understand its impact on the population
Flu forecasting can help decrease that uncertainty by predicting increases in flu hospitalizations.
Additional resources
Strategies to reduce the risk of seasonal flu.
Learn about identifying flu symptoms, how the diagnosis works, common complications, and more.
Learn how flu is diagnosed.
If you get sick with flu, flu antiviral drugs may be a treatment option.
Learn More about Flu Vaccine Supply and Distribution
Past Flu Seasons
Season summaries for 2006-2007 through 2023-2024 Flu Seasons.
Review information about the 2023-2024 Flu Season.
Find information on the 2022-2023 flu season, including vaccine composition, timing, and provider gu...
Flu season summary 2021-2022: flu activity remained elevated much later into the spring than any pre...
Flu activity was unusually low throughout the 2020-2021 flu season both in the United States and glo...